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Abstract

Contrast enhancement in spinal nerve roots: an experimental study.

C Nguyen, V M Haughton, K C Ho, H S An, J B Myklebust, T Hasegawa, R Xu and J M Harb
American Journal of Neuroradiology February 1995, 16 (2) 265-268;
C Nguyen
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V M Haughton
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K C Ho
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H S An
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J B Myklebust
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T Hasegawa
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R Xu
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J M Harb
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Abstract

PURPOSE To examine histopathologically the endothelium of contrast-enhancing spinal nerve roots.

METHODS In five adult baboons, chronic compression of the left S-1 spinal nerve root sufficient to produce a change in the evoked potential was produced by means of a suture tied around the nerve. The animals were studied with MR at 8 and 16 days after nerve compression and then killed for histopathologic and electron microscopic studies. Histopathologic changes in the nerve roots demonstrating contrast enhancement were described.

RESULTS In all compressed spinal nerves, contrast enhancement was observed. Histopathologically, wallerian degeneration of the root and inflammation and disruption of the endothelium of capillaries in the spinal nerve were evident.

CONCLUSIONS Degenerative changes in the nerve root and the capillary endothelium of a lumbar spinal nerve are associated with contrast enhancement.

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American Journal of Neuroradiology
Vol. 16, Issue 2
1 Feb 1995
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Contrast enhancement in spinal nerve roots: an experimental study.
C Nguyen, V M Haughton, K C Ho, H S An, J B Myklebust, T Hasegawa, R Xu, J M Harb
American Journal of Neuroradiology Feb 1995, 16 (2) 265-268;

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Contrast enhancement in spinal nerve roots: an experimental study.
C Nguyen, V M Haughton, K C Ho, H S An, J B Myklebust, T Hasegawa, R Xu, J M Harb
American Journal of Neuroradiology Feb 1995, 16 (2) 265-268;
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